The new Fly Sky FS-GR3F is the new version of Fly Sky's 3 channel surface receiver system. It features the same Automatic Frequency Hopping Digital System (AFHDS) but includes an updated antenna for even better reception and longer range. Up to a 30meter (~100ft) gain is experienced from this new receiver version. Other minute differences are changes in the bind plug location and voltage ratings. The new FS-GR3F receiver can now accept up to 8.4 volts of power to muscle the new high voltage servos.